Safety helmet



FIG. 1 is a perspective view of a safety helmet showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The fastening belt is removed in FIGS. 2-6 for clarity of illustration.

The ornamental design for a safety helmet, as shown and described.